Quarterly report pursuant to Section 13 or 15(d)

Revenue from Contracts with Customers (Narrative) (Details)

v3.21.2
Revenue from Contracts with Customers (Narrative) (Details) - USD ($)
$ in Millions
Jun. 30, 2021
Jun. 30, 2020
Revenue from Contract with Customer [Abstract]    
Amount of remaining upfront license fee $ 0.7 $ 0.8